plugin.c (register_plugin_info): Produce an error message if the plugin is not found...

	* plugin.c (register_plugin_info): Produce an error message if the
	plugin is not found in the hash table.

From-SVN: r241613

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ee733cf..ca1502a 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-10-27  Nick Clifton  <nickc@redhat.com>
+
+       * plugin.c (register_plugin_info): Produce an error message if the
+       plugin is not found in the hash table.
+
 2016-10-27  Bin Cheng  <bin.cheng@arm.com>
 
        * match.pd ((convert1 (minmax ((convert2 (x) c)))) -> minmax (x c)):

diff --git a/gcc/plugin.c b/gcc/plugin.c
index 60081a5..9f63fa1 100644 (file)
--- a/gcc/plugin.c
+++ b/gcc/plugin.c
@@ -330,7 +330,15 @@ static void
 register_plugin_info (const char* name, struct plugin_info *info)
 {
   void **slot = htab_find_slot (plugin_name_args_tab, name, NO_INSERT);
-  struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
+  struct plugin_name_args *plugin;
+
+  if (slot == NULL)
+    {
+      error ("unable to register info for plugin '%s' - plugin name not found",
+            name);
+      return;
+    }
+  plugin = (struct plugin_name_args *) *slot;
   plugin->version = info->version;
   plugin->help = info->help;
 }